Photonic crystal slab quantum cascade detector

Reininger, Peter; Schwarz, Benedikt; Harrer, Andreas; Zederbauer, Tobias; Detz, Hermann; Andrews, A. M.; Gansch, Roman; Schrenk, W.; Strasser, G.

doi:10.1063/1.4846035

Cited by 20 publications

(9 citation statements)

References 15 publications

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“…[6][7][8][9][10] Benefiting from this, QC detectors in traditional III-arsenide and III-phosphide materials achieve a wide range of operating wavelengths with intrinsically low noise and low heat load. Furthermore, the study of intersubband light detection [11][12][13][14][15] and QC structures [16][17][18] in the III-nitride and II-VI material systems have made significant progress.…”

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confidence: 99%

III-nitride quantum cascade detector grown by metal organic chemical vapor deposition

Song

Bhat

Huang

et al. 2014

Applied Physics Letters

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Articles you may be interested inRefractive index of III-metal-polar and N-polar AlGaN waveguides grown by metal organic chemical vapor deposition Appl. Phys. Lett. 102, 221106 (2013); 10.1063/1.4800554 Actual temperatures of growing surfaces of III-nitride-based materials depending on substrates and forced convection conditions in metal organic chemical vapor deposition Fourier analysis applied on in situ laser reflectometry during III-nitride metal organic chemical vapor deposition growth

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confidence: 99%

III-nitride quantum cascade detector grown by metal organic chemical vapor deposition

Song

Bhat

Huang

et al. 2014

Applied Physics Letters

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“…In order to fulfil the polarization selection rule of intersubband transitions, electric field perpendicular to the surface, discrete QCDs require special techniques. This can be achieved with a 45° incident angle by rotating normal incident light with gratings or more sophisticated photonic crystals cavities 17 . For an on-chip detector, light can be directly coupled from a waveguide to the detector, improving the overall performance of the device significantly.…”

Section: Resultsmentioning

confidence: 99%

Monolithically integrated mid-infrared lab-on-a-chip using plasmonics and quantum cascade structures

et al. 2014

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The increasing demand of rapid sensing and diagnosis in remote areas requires the development of compact and cost-effective mid-infrared sensing devices. So far, all miniaturization concepts have been demonstrated with discrete optical components. Here we present a monolithically integrated sensor based on mid-infrared absorption spectroscopy. A bi-functional quantum cascade laser/detector is used, where, by changing the applied bias, the device switches between laser and detector operation. The interaction with chemicals in a liquid is resolved via a dielectric-loaded surface plasmon polariton waveguide. The thin dielectric layer enhances the confinement and enables efficient end-fire coupling from and to the laser and detector. The unamplified detector signal shows a slope of 1.8–7 μV per p.p.m., which demonstrates the capability to reach p.p.m. accuracy over a wide range of concentrations (0–60%). Without any hybrid integration or subwavelength patterning, our approach allows a straightforward and cost-saving fabrication.

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“…Thus, many novel coupled structures have been applied to fulfill the intersubband transition selection rule and enhance quantum efficiency [21, 22]. Metamaterials are man-made structures compositing of sub-wavelength periodically arranged metallic resonators that allow for three-dimensional control of light [23].…”

Section: Introductionmentioning

confidence: 99%

A Polarization-Dependent Normal Incident Quantum Cascade Detector Enhanced Via Metamaterial Resonators

et al. 2016

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The design, fabrication, and characterization of a polarization-dependent normal incident quantum cascade detector coupled via complementary split-ring metamaterial resonators in the infrared regime are presented. The metamaterial structure is designed through three-dimensional finite-difference time-domain method and fabricated on the top metal contact, which forms a double-metal waveguide together with the metallic ground plane. With normal incidence, significant enhancements of photocurrent response are obtained at the metamaterial resonances compared with the 45° polished edge coupling device. The photocurrent response enhancements exhibit clearly polarization dependence, and the largest response enhancement factor of 165% is gained for the incident light polarized parallel to the split-ring gap.

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Photonic crystal slab quantum cascade detector

Cited by 20 publications

References 15 publications

III-nitride quantum cascade detector grown by metal organic chemical vapor deposition

III-nitride quantum cascade detector grown by metal organic chemical vapor deposition

Monolithically integrated mid-infrared lab-on-a-chip using plasmonics and quantum cascade structures

A Polarization-Dependent Normal Incident Quantum Cascade Detector Enhanced Via Metamaterial Resonators

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